272  Stamp
How many stamps? 2

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There are 180 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 6-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1540 cents. How many 8-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1160 cents. How many 6-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1560 cents. How many 8-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1540 cents. How many 6-cent stamps are there?

There are 160 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 880 cents. How many 6-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 960 cents. How many 8-cent stamps are there?



오늘 6원짜리 9원짜리 우표 총 200 장을 사고, 1350 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 160 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 690 cents. How many 6-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 750 cents. How many 5-cent stamps are there?

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